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Paul [167]
3 years ago
12

Name the compound mg3cl2 is it magnesium chloride?

Chemistry
1 answer:
Scilla [17]3 years ago
7 0
No 
Magnesium Chloride is MgCl2 

The method I use to name ionic compounds is 'swap and drop' 

Mg oxidation number is +2 and Cl oxidation number is -1
Mg^2+         Cl^-1  
'swap'
Mg^1           Cl^2 
'drop' 
MgCl2
 
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Hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer indu
ddd [48]

<u>Answer:</u> The amount of heat released is 56 MJ.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}  

Given mass of C_2H_6 = 12 kg = 12000 g    (Conversion factor: 1 kg = 1000 g)

Molar mass of C_2H_6 = 30 g/mol

Putting values in above equation, we get:

\text{Moles of }C_2H_6=\frac{12000g}{30g/mol}=400mol

The chemical reaction for hydrogenation of ethene follows the equation:

C_2H_4+H_2\rightarrow C_2H_6

By Stoichiometry of the reaction:

When 1 mole of ethane releases 140 kJ of heat.

So, 400 moles of ethane will release = \frac{140}{1}\times 400=56000kJ of heat.

Converting this into Mega joules, using the conversion factor:

1 MJ = 1000 kJ

So, \Rightarrow 56000kJ\times (\frac{1MJ}{1000kJ})=56MJ

Hence, the amount of heat released is 56 MJ.

8 0
3 years ago
A solution was prepared by mixing 20.00 mL of 0.100 M and 120.00 mL of 0.200 M. Calculate the molarity of the final solution of
Marat540 [252]

Answer:

0.186M

Explanation:

First, we need to obtain the moles of nitric acid that are given for each solution. Then, we need to divide these moles in total volume (120mL + 20mL = 140mL = 0.140L) to obtain molarity:

<em>Moles Nitric acid:</em>

0.0200L * (0.100mol / L) = 0.00200 moles

0.120L * (0.200mol / L)= 0.02400 moles

Total moles: 0.02400moles + 0.00200moles = 0.026 moles of nitric acid

Molarity: 0.026 moles / 0.140L

<h3>0.186M</h3>
6 0
3 years ago
FOR LondonCreamCakes<br> no sure if its right but im trying to help.. lol dont mind all the tabs
MAVERICK [17]

Answer:

It kinda helps but not  really

Thanks for trying anyway doe!

Explanation:

7 0
2 years ago
Natural gas is primarily composed of ________. natural gas is primarily composed of ________. methane sulfur dioxide nitrogen ox
umka21 [38]
Natural  gas  is primarily composed of   methane (CH4)

 N
atural  gas  is a naturally  occurring  hydrocarbon  mixture  which  is  primarily  composed of Methane(CH4),  but it  also  contains ethane,propane and  heavier hydrocarbon. In addition  it  contain small amount  of nitrogen, carbon dioxide,hydrogen sulfide and traces amount of water.

7 0
3 years ago
What are the reactants in the reaction? What are their properties? Perform a quick Internet search, if needed.
Helen [10]

The reactants in this reaction are sodium and chlorine. Sodium is a soft, silvery-white metal that is highly reactive. Chlorine is a poisonous greenish-yellow gas that has an odor and combines readily with other elements.

This might be the exact question so you might wanna rephrase it but good luck! :)))

7 0
2 years ago
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